Is Underclothing Singular or Plural?

Sixties Mod. "Underwear" is an uncountable noun

uncountable noun
In linguistics, a mass noun, uncountable noun, or non-count noun is a noun with the syntactic property that any quantity of it is treated as an undifferentiated unit, rather than as something with discrete elements. ... Mass nouns have no concept of singular and plural, although in English they take singular verb forms.
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and is always singular. So it's version (1) "Hey, your underwear is on the floor.

Can we say underwears?

Explanation: One would say, "this is my underwear." When referencing underwear in the plural, never say "underwears"--it's not a word.

Is undergarments plural or singular?

The plural form of undergarment is undergarments.

Chloe Bennett

Chloe Bennett

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